Question

find x in each of the following proportions x : 9 : : 84 : 36​

Answer 1

Answer:

x = 21

21:9 :: 84:21

Step-by-step explanation:

36/9=4

So, divide 84 by 4.

Therefore, 84/4=21

Answer 2

Answer:

x = 21

Step-by-step explanation:

x:9::84:36

∴ Product of the Means = Product of the Extremes

∴ 36x = (9).(84)

∴ $x = \frac{(9).(84}{36} = 21$